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2 years ago

PLSSS HELP IMMEDIATELY!!!!!!! only answer if u know. i’ll be giving brainiest if u don’t leave a link.

Mathematics

1 answer:

podryga [215]2 years ago

7 0

Answer:

1. isosceles because two of the sides are equal

2. right because there is a right angle

Step-by-step explanation:

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Step-by-step explanation:

if u understand my handwriting lol

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2 years ago

How I can solve this

gavmur [86]

Answer:

$\boxed{\textrm{B)}\qquad y>4}.$

Step-by-step explanation:

We start by subtracting $1$ from both sides of the second inequality:

$2x > 5 \iff 2x - 1 > 5 - 1 \iff 2x - 1 > 4.$

Therefore, we conclude that:

$y > 2x - 1 > 4 \implies y > 4.$

Therefore, every point that satisfies the system has a $y$ -coordinate greater than $4$ .

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2 years ago

David has $65 dollars to spend on a ticket to a concert and a shirt. He already spent $32.25 on his ticket and fee. Find an equa

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2 years ago

Simplify: cos2x-cos4 all over sin2x + sin 4x

GrogVix [38]

Answer:

$\frac{\cos\left(2x\right)-\cos\left(4x\right)}{\sin\left(2x\right)+\sin\left(4x\right)}=\tan\left(x\right)$

Step-by-step explanation:

$\frac{\cos\left(2x\right)-\cos\left(4x\right)}{\sin\left(2x\right)+\sin\left(4x\right)}$

Apply formula:

$\cos\left(A\right)-\cos\left(B\right)=-2\cdot\sin\left(\frac{A+B}{2}\right)\cdot\sin\left(\frac{A-B}{2}\right)$ and

$\sin\left(A\right)+\sin\left(B\right)=2\cdot\sin\left(\frac{A+B}{2}\right)\cdot\sin\left(\frac{A-B}{2}\right)$

We get:

$=\frac{-2\cdot\sin\left(\frac{2x+4x}{2}\right)\cdot\sin\left(\frac{2x-4x}{2}\right)}{2\cdot\sin\left(\frac{2x+4x}{2}\right)\cdot\cos\left(\frac{2x-4x}{2}\right)}$

$=\frac{-\sin\left(\frac{2x-4x}{2}\right)}{\cos\left(\frac{2x-4x}{2}\right)}$

$=\frac{-\sin\left(\frac{-2x}{2}\right)}{\cos\left(\frac{-2x}{2}\right)}$

$=\frac{-\sin\left(-x\right)}{\cos\left(-x\right)}$

$=\frac{-\cdot-\sin\left(x\right)}{\cos\left(x\right)}$

$=\frac{\sin\left(x\right)}{\cos\left(x\right)}$

$=\tan\left(x\right)$

Hence final answer is

$\frac{\cos\left(2x\right)-\cos\left(4x\right)}{\sin\left(2x\right)+\sin\left(4x\right)}=\tan\left(x\right)$

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2 years ago

Plz answer asap and i would be very grateful

goldfiish [28.3K]

The answer is C.

hope this helps

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2 years ago